Open to opportunities

Chester De Guzman

@chesterdeguzman

Senior Software Engineer specializing in scalable React, TypeScript, and GraphQL-driven web applications for data-heavy platforms.

Philippines

Message

What I'm looking for

I’m looking to build scalable React applications for data-heavy products—deeply integrating GraphQL/REST APIs, optimizing performance for large datasets, and contributing to CI/CD and collaborative engineering workflows within a high-standards team.

I’m a Software Engineer with 7+ years of experience building scalable, API-driven web applications using React, TypeScript, and modern frontend architectures. I focus on data-intensive platforms—integrating GraphQL and REST APIs, optimizing data-fetching, and collaborating closely with backend and platform engineers to deliver reliable full-stack systems.

In recent roles, I built scalable React and TypeScript interfaces for complex healthcare analytics dashboards, including reusable component and data visualization modules with Recharts and D3.js. Earlier, I developed interactive editing tools using React, Next.js, and advanced state management (including Zustand), plus authentication with AWS Amplify and performance optimizations for large datasets. I’m at my best translating complex product requirements into scalable technical solutions while maintaining high engineering standards across distributed teams.

Experience

Work history, roles, and key accomplishments

Senior Frontend Developer

FunctionHealth

Jan 2025 - Feb 2026 (1 year 1 month)

Built scalable React and TypeScript interfaces for healthcare analytics dashboards, developing reusable component systems and data visualization modules with Recharts and D3.js. Integrated GraphQL and REST APIs, optimized API consumption to reduce data-fetch latency, and implemented server-state caching with React Query.

React TypeScript GraphQL REST APIs React Query Recharts D3.Js CI CD Performance Optimization

React Frontend Developer

Redlizard Studioz

Aug 2021 - Dec 2024 (3 years 4 months)

Developed advanced UI tools for creative editing platforms using React and TypeScript, including stateful layer visualization and transformation features. Built Zustand-based state management for interactive workflows and collaborated with backend services to support real-time editing and asset management.

React TypeScript Zustand State Management API Integration

Frontend Developer

KaizenPH IT Solutions

Jun 2018 - Jul 2021 (3 years 1 month)

Built frontend applications for a data-intensive charting and analytics platform using Next.js and Redux. Implemented AWS Amplify authentication flows, created reusable API service layers, and improved rendering performance for large datasets using better data structures and caching strategies.

Next.js React TypeScript Redux AWS Amplify Authentication Performance Optimization Builder.Io